MCQ
Ray optics is valid, when characteristic dimensions are
  • A
    Of the same order as the wavelength of light
  • B
    Much smaller than the wavelength of light
  • C
    Of the order of one millimetre
  • Much larger than the wavelength of light

Answer

Correct option: D.
Much larger than the wavelength of light
d
Ray optics is valid when size of the objects is much larger than the order of wavelength of light.

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